In addition to being congruent, how are the diagonals of a square related?
What will be an ideal response?
perpendicular-bisectors of each other
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The table shown was generated by a graphics calculator. The expression y1 represents f(x).
If f(x) = -7, then x = ?
A. -2 B. 2 C. 0 D. Cannot be determined
Provide an appropriate response.Find the equation of the line perpendicular to y - x + 2 = 0 and passing through the point 
Solve the equation for y.
Fill in the blank(s) with the appropriate word(s).
Solve the problem.The decibel level D of a sound is related to its intensity I by 
. If I0 is 10-12, then what is the intensity of a noise measured at 93 decibels? Express your answer in scientific notation, rounding to three significant digits, if necessary.
A. 1.09 × 1016 watt/m2 B. 2 × 10-3 watt/m2 C. 2 × 10-2 watt/m2 D. 9.3 × 10-10 watt/m2
Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.log 
A. log 6 + 2log x + 
log (2 - x) - log 4 + 2log (x + 2)
B. log 6 + log x2 + log (2 - x)1/3 - log 4 - log (x + 2)2
C. log (6x2
) - log (4(x + 2)2)
D. log 6 + 2log x + 
log (2 - x) - log 4 - 2log (x + 2)